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Finding the Fourth Proportional to 345,081.99, 517,675.23 and 108,402.42

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Solution

The fourth proportional to 345,081.99, 517,675.23 and 108,402.42 is: 162,620.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,081.99 : 517,675.23 = 108,402.42 : x
  2. Step 2: Convert to fraction form
    345,081.99/517,675.23 = 108,402.42/x
  3. Step 3: Cross multiply
    345,081.99x = 517,675.23 × 108,402.42
  4. Step 4: Simplify right side
    345,081.99x = 56,117,247,706.06
  5. Step 5: Solve for x
    x = 56,117,247,706.06/345,081.99
  6. Step 6: Final answer
    x = 162,620.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.